Soldering compound.



TENT OFFTQE.

ORVAL O. HOOVER, OF JOHNSTOWN, OHIO.

SOLDERING COMPOUND.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filed April 18,. 1907. Serial No. 36819651 T 0 all whom itmay concern:

Be it known that I, ORVAL C. HOOVER, a citizen of the United States,residing at J ohnstown, in the county of Licking and State of Ohio, haveinvented certain new and useful Improvements in Soldering Gompounds, ofwhich the following is a specification.

This invention is a soldering compound that will act as a flux for hardor soft solder, or gold solder, or on any metal.

The object of the invention is to produce a solder compound which willact on any of the common metals, without corrosion, and Withoutpoisonous fumes or odors, and which is harmless to the hands orclothing. It may be used for fluxing steel or black iron, silver, gold,tin and zinc, aluminium, co per, and various other metals, and it wilnot corrode the finest metal.

The formula and method of preparation of the compound are as follows:For five gallons of the compound, take of borax ten ounces, rosin twentyounces and sal ammoniac ten ounces. These are ground together and mixed.Then add finely chipped zinc ten pounds, muriatic acid ten uarts, andlet stand until the chemical action ceases, and then add soft water tenquarts, cochineal five ounces. Let stand twelve hours, and then addalcohol ten ounces and of glycerin two ounces, and filter, and theliquid compound will be ready for use.

The compound will act Without corrosion corrosion.

on any metal. The sal ammoniac, rosin, and borax neutralize thepoisonous and corrosive qualities of the acid, and the borax also actsas a flux for steel or black iron, for brazing, and for silver and goldsoldering. The glycerin has a tendency to prevent any possible for itscolor, although it has been found by experiment that the compound worksbetter and freer with it than Without, the reason for which is notknown. The alcohol acts as a reservative so that the compound may be eptindefinitely without deterioration. It will prevent the oxidation on thesurface of metals being soldered or brazed, and it does not cause anybad odors when being used. Soldering coppers may be easily and quicklytinned by its use and will not pit when in use as is often the case whenan acid flux is used.

I claim:

1. A soldering compound of borax, rosin, zinc, muriatic acid, alcoholand glycerin.

2. A soldering compound consisting of a solution of zinc in muriaticacid, neutralized by the addition of borax, rosin, and sal ammoniac andcontaining also cochineal, alcohol, and glycerin.

In testimony whereof I do affix my signature, in presence of twowitnesses.

- ORVAL O. HOOVER.

Witnesses:

G. G. WILLIAMSON, H. G. LAKE.

The cochineal is used principally

